Add 72/45 and 80/12, Solve 1 27/45 + 6 8/12 as a fraction

Add 72/45 and 80/12

1^st number: 1 27/45, 2^nd number: 6 8/12

72/45 + 80/12 is 124/15.

Find the least common denominator or LCM of the two denominators:
LCM of 45 and 12 is 180

Next, find the equivalent fraction of both fractional numbers with denominator 180
For the 1st fraction, since 45 × 4 = 180,
72/45 = 72 × 4/45 × 4 = 288/180
Likewise, for the 2nd fraction, since 12 × 15 = 180,
80/12 = 80 × 15/12 × 15 = 1200/180
Add the two like fractions:
288/180 + 1200/180 = 288 + 1200/180 = 1488/180
1488/180 simplified gives 124/15
So, 72/45 + 80/12 = 124/15
In mixed form: 84/15

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